From da9422f41218289399d6705ce613d2e04bf0f28b Mon Sep 17 00:00:00 2001
From: eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 17 Aug 2018 11:22:55 +0000
Subject: Add a note how to run specs under older Ruby versions

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64413 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 spec/README.md | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'spec')

diff --git a/spec/README.md b/spec/README.md
index 6ab1589af9..7f2b827a1f 100644
--- a/spec/README.md
+++ b/spec/README.md
@@ -22,6 +22,13 @@ Currently, the only module which is MRI-specific is `RubyVM`.
 Version guards (`ruby_version_is`) must be added for new features or features
 which change behavior or are removed. See `spec/ruby/CONTRIBUTING.md` for details.
 
+To verify specs are compatible with older Ruby versions:
+```
+cd spec/ruby
+$RUBY_MANAGER use 2.3.7
+../mspec/bin/mspec -j
+```
+
 ## Running ruby/spec
 
 To run all specs:
-- 
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